SOLUTION: find the slope, if it exists, of the line containg the pair of points. (-8,-11) and (-9,-13)

Algebra ->  Graphs -> SOLUTION: find the slope, if it exists, of the line containg the pair of points. (-8,-11) and (-9,-13)      Log On


   

Question 302531: find the slope, if it exists, of the line containg the pair of points. (-8,-11) and (-9,-13)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Note: is the first point . So this means that x%5B1%5D=-8 and y%5B1%5D=-11.
Also, is the second point . So this means that x%5B2%5D=-9 and y%5B2%5D=-13.


m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 Start with the slope formula.


m=%28-13--11%29%2F%28-9--8%29 Plug in y%5B2%5D=-13, y%5B1%5D=-11, x%5B2%5D=-9, and x%5B1%5D=-8


m=%28-2%29%2F%28-9--8%29 Subtract -11 from -13 to get -2


m=%28-2%29%2F%28-1%29 Subtract -8 from -9 to get -1


m=2 Reduce


So the slope of the line that goes through the points and is m=2